Optical imaging lens
AssigneeGenius Electronic Optical (Xiamen) Co., Ltd.
InventorsHung-Chien Hsieh, Ou Zhou, Lanlan Zhang
Life of this patent
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Abstract
An optical imaging lens includes a first lens element, a second lens, an aperture stop, a third lens element and a fourth lens element from an object side to an image side in order along an optical axis, and each lens element has an object-side surface and an image-side surface. An optical axis of the image-side surface of the first lens element is convex and an optical axis of the image-side surface of the fourth lens element is concave. HFOV stands for the half field of view of the entire optical imaging lens and TTL is a distance from the object-side surface of the first lens element to an image plane along the optical axis to satisfy HFOV/TTL≤1.500° /mm.
Claims20
An optical imaging lens, from an object side to an image side in order along an optical axis comprising:
- a first lens element, a second lens element, a third lens element, and a fourth lens element, each of the first lens element to the fourth lens element having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
- an optical axis region of the image-side surface of the first lens element is convex;
- wherein lens elements of the optical imaging lens are only the four lens elements described above;
- wherein HFOV stands for a half field of view of the optical imaging lens, an Abbe number of the first lens element is u1, an Abbe number of the second lens element is u2, an Abbe number of the fourth lens element is u4, an Abbe number of the third lens element is u3, and the optical imaging lens satisfies the relationships:
- HFOV≤15.000°, u1+u2≥2*u4, u1+u2≥2*u3, and a thickness of the second lens element along the optical axis is greater than an air gap between the second lens element and the third lens element along the optical axis.
An optical imaging lens, from an object side to an image side in order along an optical axis comprising:
- a first lens element, a second lens element, a third lens element, and a fourth lens element, each of the first lens element to the fourth lens element having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
- an optical axis region of the image-side surface of the first lens element is convex;
- wherein lens elements of the optical imaging lens are only the four lens elements described above;
- wherein HFOV stands for a half field of view of the optical imaging lens, an Abbe number of the first lens element is u1, an Abbe number of the second lens element is u2, an Abbe number of the fourth lens element is u4, and the optical imaging lens satisfies the relationships:
- HFOV≤15.000°, u1+u2≥2*u4, the Abbe number of the second lens element is greater than an Abbe number of the third lens element, and a thickness of the second lens element along the optical axis is greater than an air gap between the second lens element and the third lens element along the optical axis.
An optical imaging lens, from an object side to an image side in order along an optical axis comprising:
- a first lens element, a second lens element, a third lens element, and a fourth lens element, each of the first lens element to the fourth lens element having an object-side surface facing toward the object side and allowing imaging rays to pass through as well as an image-side surface facing toward the image side and allowing the imaging rays to pass through, wherein:
- an optical axis region of the image-side surface of the first lens element is convex;
- wherein lens elements of the optical imaging lens are only the four lens elements described above;
- wherein HFOV stands for a half field of view of the optical imaging lens, an Abbe number of the first lens element is u1, an Abbe number of the second lens element is u2, an Abbe number of the fourth lens element is u4, an Abbe number of the third lens element is u3, and the optical imaging lens satisfies the relationships:
- HFOV≤15.000°, u1+u2≥2*u4, u1+u3+u4≤3*u2, and a thickness of the fourth lens element along the optical axis is greater than an air gap between the second lens element and the third lens element along the optical axis.
Dependencies are inferred from the claim text.